Question · asked by 1 review

Oral 5‐ASA vs 5‐aminosalicylic acid (5‐ASA) (mesalazine): Adverse events

Oral 5‐ASA showed no clear difference in adverse events compared with comparator 5‐ASA (moderate certainty).

What each review found

Current versions only
FindingEffectStudiesGRADE certainty
Oral 5‐ASA vs comparator 5‐ASA
Adverse events · People with active mild‐to‐moderate ulcerative colitis
Oral 5‐ASA showed no clear difference in adverse events compared with comparator 5‐ASA (moderate certainty).
Oral 5‐aminosalicylic acid for induction of remission in ulcerative colitis (2020) · Cochrane Headline outcomes only
RR 1.01 [0.92, 1.12]9 studies · 1576 participantsModerate
Oral 5‐ASA vs comparator 5‐ASA
Adverse events · Patients with active mild to moderate ulcerative colitis
Oral 5‐ASA showed no clear difference in adverse events compared with comparator 5‐ASA (moderate certainty).
Oral 5‐aminosalicylic acid for induction of remission in ulcerative colitis (2016) · Cochrane Headline outcomes onlyearlier version CD000543.PUB4, superseded
RR 1.01 [0.92, 1.12]9 studies · 1576 participantsModerate
Oral 5‐ASA vs comparator 5‐ASA
Adverse events · Patients with active mild to moderate ulcerative colitis
Oral 5‐ASA showed no clear difference in adverse events compared with comparator 5‐ASA (moderate certainty).
Oral 5‐aminosalicylic acid for induction of remission in ulcerative colitis (2012) · Cochrane Headline outcomes onlyearlier version CD000543.PUB3, superseded
RR 1.01 [0.92, 1.12]9 studies · 1576 participantsModerate

Findings are shown side by side, never pooled across reviews.

The reviews

ReviewSearched up toIncluded studiesAMSTAR 2
Oral 5‐aminosalicylic acid for induction of remission in ulcerative colitis
2020 · Cochrane Headline outcomes only
Not reportedlist not extracted yetNot assessed

Studies behind the findings

None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.

How reviews are matched to this question

Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.